Was this music purchased? In which case it can be recovered. Hdd recovery @ Anywhere cost's an arm, leg and kidney(s)If you got Apple Care, go make an appointment with Apple. Otherwise describe step by step of what you did.
Apples not going to recover an erased drive for you. A data recovery service can but it's $$$$.If you got Apple Care, go make an appointment with Apple. Otherwise describe step by step of what you did.
Assuming you had TM back up that drive I think it's as easy as going into TM and choosing to Restore and then choosing which drive/backup to use and the destination. When I did this, my brand new drive was named the same as the previous one, so there was nothing else for me to do once it was done...meaning iTunes was already pointed to the correctly named location once the restoration was complete. To iTunes, nothing had changed.I do have a Time Machine back up on a seperate HD but not sure how to restore it to iTunes